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Partial cadastral map showing some householders' names, individual buildings, and vegetation. Relief shown by contours and hachures. Depths shown by contours and soundings. Also covers Virginia shoreline zone. "Entered according to Act of Congress in the year 1861, by D. McClelland, Blanchard & Mohun, Hugh B. Sweeny, and Thos. Blagden, in the Clerks Office of the District Court of the District of Columbia." Oriented ...